Question

Simplify the expression.

Answer 1

you would have to know that
\[\sin ^{2}x + \cos ^{2}x = 1\]

Answer 2

you would also have to know the following:
\[\frac{ \cos x }{\sin x } = \cot x\]
\[\frac{ 1 }{ \sin x } = cosec x\]
\[\frac{ 1 }{ \cos x } = \sec x\]

Answer 3

does that help or i should also explain the procedure??

Answer 4

yes thank you... can you help me with one more

Answer 5

Use basic identities to simplify the expression.

Answer 6

sure

Answer 7

should i explain the procedure for that one??

Answer 8

yes please

Answer 9

you would also have to know that:
\[\tan x = \frac{ \sin x }{ \cos x }\]